Box



' Oct. 25,1927. v I SMITH BOX Filed Aug. 2.: 192a aftoznmax Patented Oct. 25, v 1927. UNITED STATES CHARLES H. SMITH, OF NEWTON,

Application filed August 2, 1926. Serial no. 126,622.

This invention relates to paper receptacles and more particularly to a. box preferably formed of cardboard and having a removable cover.

One object of the invention is to provide a box with a cover which may be readily removed when the box is empty but will be securely held in place and diflicult to remove when the box is filled. I

Another object of the invention isto provide the cover with internal pockets and the box with looking tongues which Wlll be compressed towards the walls of the box when the cover is applied and returned to position to enter the pockets and prevent ready removal of the cover. v

Another object I of the greatly strengthen the cover and prevent the pockctforming portions from being easily torn after the cover is applied to the box and an attempt made to open it.

Another object of the invention is to form the coverfrom a single blank which may be folded to provide the top and walls thereof with the walls reinforced-at their i corners and carrying the lock-rece ving pockets.

The. invention is illustrated in the accom through the box with the cover applied thereto, and v Fig. 4 is a view of one end portion of the blanlrfrom which the cover is made.

The paper receptacle forming the sub-. ject-matter of this invention includes a box or body portion which is preferably formed of cardboard and a cover which is also preferably formed of cardboard and adapted to close the open upper end of the box..- I he box/ is provided with a bottom 1 and side and end walls 2 and 3 which-project up wardly from the bottom and at their upper endsc arry locking tongues 4 and 5. The

. outer faces of the walls.

and 5 are formed integral with tongues 4 I walls but are of less length the side and end than their upper edges, as shown in Fig. 1,

and bent downwardly so that they extend in depending and diverging relation to the The cardboard has sufiicient resiliency to allow the tongues to be forced towards the walls and cause them 'to' spring outwardly towards their original invention is to transverse sectional view positions when relieved from the pressure.

The cover is formed from a cardboard blank having abody portion 6 which forms the top 7 of the cover and from which extends side and end extensions 8 and 9 constitutin'g the side and end walls 10 and 11 of.

lower edges of the walls 10 and 11. Tongues.

18 extend from the ends of the side walls 10 and are bent along the dotted lines 19 to overlap the inner'faces of the wallsll trans- 1 versely of the cover and when engaged with the walls 11 are overlapped by tongues or arms 20 which project from the endportions ofthe flanges 17. Similar tongues 21 extend from the end portions of the flanges 16. and these tongues are secured by fas-' teners 22. Since the fasteners for the tongues 20 also pass through the tongues 18,

the cover greatly strengthened. It should alsobe noted thatportions of the flanges 16 and 17 extend outwardly from the inner faces of the walls 10 and 11 between the ton ueextensions at-their ends and define 1 poc 'ets 23 and i 24 adapted to receive the tongues 4 and 5 of thebox. I I

When the cover is applied to the box the flanges '16 and 17 will engage the loci; tongues 4 and 5 and force the tongues towards the walls of the box. As soon as the flanges move downwardly out of engagement with the locking tongues,- pressu-re u on the tongues will be removed and they Wil spring outwardly and engage the inner faces of the walls 10 and 11, as shown in Fig. 3. Referring to this figure, it will be seen that, when the cover is applied, the locking tongues are disposed above the pockets so'tha't if it is attem'ptedto remove thecover the'tongues will pass into the pockets and prevent easy removal thereof, If the box is'empty, the

side and end walls thereof may be forced inwardly a sufiicient distance to temporarily ing move the locking tongues out of position to jenter the pockets and the cover may be easily 1 removed. When, however, the box is fille inward movement of its. wall-will be pre;-'

vented and the cover cannot be. removed without the tongues catching in the pockets.

no i

a It is then necessary to exert force enough to ets or locking tongues.

Having thus described the invention, I claim: v p

1. A receptacle having a bottom and walls,

" yieldable locking tongues extending downwardly and outwardly from the walls andterminating with their ends in spaced relation to the side faces of the walls, a cover for said receptacle removably fitted thereon and having depending marginal walls overlapping the walls 'ofthe receptacle, and tongues extending upwardly from the walls of said cover and having their end portions secured against the inner faces thereof and their intermediate portions extending in spaced relation thereto to' form pockets adapted to receive the tongues of said recepacle and lock the cover upon the receptacle.

2. Areceptacle having a bottom and walls, yieldable locking tongues extending downwardly. and outwardly from the walls and terminating with their ends in spaced relation to the side faces of the walls, a cover for said receptacle removably fitted thereon and having depending marginal walls overlapping the -walls of the receptacle, and tongues extending upwardly from the walls of said cover and, having their intermediate portions extending in spaced relation to the inner faces thereof to provide pockets to receive said locking tonguesand their erfd portions extended towards the top of the cover and firmly secured against the inner faces of the cover walls.

3. A receptacle having a bottom and walls,-

yieldable locking tongues extending downwardly and outwardly from the walls and terminating withtheir ends in spaced relation to the side edges of the walls, a cover for said receptacle removably fitted thereon and having a top and depending side and end walls, said side walls having extended end portions forming tongues folded against the inner faces of said end walls, thelower por- '-tions of the walls of said cover being folded inwardly with their. intermediate portions extending in diverging relation to the wall to provide pockets to receive the tongues of said receptacle when the cover is in place upon the receptacle, arms extending from the end portions of the inwardly folded portionsof' the side walls and secured against the inner faces thereof, and arms extending from the -end portions of the inwardly folded portions of the end walls and secured in overlapping relation to the tongues of the side walls.

4. A receptacle comprising companipn' body and covermembers each having mar- 1 ginal walls, yieldable locking tongues extendingdivergently from the walls of one member and terminating in spaced relation to the side faces ofits walls, and tongues extending from the walls of the other member with their end portions secured in face to face contact therewith and their intermediate portions extendingin spaced relation to its walls to form pockets adapted to receive the locking tongues of the first member and lock the cover members upon the body member.

- In testimony whereof I aflix my signature.

CHARLES M. SMITH. [n s.] 

